baber/WOPTO huggingface dataset:
Patent GB-316442-A (GB)
Title: Improvements in prismatic refracting glass
IPC: F21V5/02
Filed: 1928-08-03
Abstract: 316,442. Holophane, Ltd., and English, S. Aug. 3, 1928. Daylight refractors; translucent sheets. - Prismatic glass sheets for refracting daylight into the interiors of buildings are formed with horizontal prisms of which the upper faces 1 are approximately parallel to the direction of the incident light and the lower faces comprise two or more sections 2 - - 4 the angles of which with the upper face increase the more remote they are from the apex. The sections 2 - - 4 may be plane or curved and may be merged into a continuous curve. The paths of the rays for light incident at angles of 40‹, 50‹, and 60‹ are shown by the lines 6-- 14.
Patent GB-708958-A (GB)
Title: Improvements in air heaters
IPC: F24C5/04
Filed: 1951-09-27
Abstract: 708,958. Air-Heating stoves. BOLLANDS, A. R. Sept. 16, 1952 [Sept. 27, 1951], No. 22617/51. Class 64(1) [Also in Group XI] An air heater, e.g. for a chicken brooder, garage &c. comprises a hollow body b and a hollow cover a both fitted with end plates and arranged with their edges opposed so as to form lateral air passages leading to a combustion chamber formed in the cover for burners provided within the body b. In the form shown the body and cover are.each semi-cylindrical and are bent respectively inwardly and outwardly adjacent to their edges to form the air gaps. A platform f closing the body b supports a series of burners, which may burn gas or oil. The oil burner shown comprises a tube h containing a perforated tube enclosing a hard asbestos core m<SP>1</SP> and steel wool m<SP>2</SP>. The core m<SP>1</SP> has a central capillary tube m which may be filled with soft asbestos wick. A wick n depends from a hole in the bottom of the tube h. The latter is supported from the platform by a collar j and fits into a surge tube g.
Patent GB-680445-A (GB)
Title: Improvements relating to flats for textile carding engines
IPC: D01G15/24
Filed: 1949-09-01
Abstract: 680,445. Textile carding flats. HINDLE, W. R. March 17, 1950 [Sept. 1, 1949], No. 22659/49. Class 120(i) A textile carding engine flat is made from two sheet metal strips A, each of which is curved to suit the curvature of the carding engine cylinder, the strips A being hinged at B at the rear of the flat and provided with detachable strips for attaching card fillet. The strips A are replaceable when necessary owing to wear or breakage. The card fillet may be secured by clips A and the middle portion of the fillet, which is devoid of teeth, is passed through a space between the strips A and secured by the detachable strips which are formed with loops, so that they may be held by a rod K between the strips A. Extending across the strips A at right angles to the rod K are grooves into which portions of the fillet are pressed and held by the detachable, strips. To render the wearing parts of the flat interchangeable and to reduce friction with the carding engine bends, at each end of the flat two sets of rollers are arranged in curved lines in a frame adjustably secured to the flat.
Patent GB-725904-A (GB)
Title: Improvements in or relating to the drying of parachutes
IPC: D06C7/00
Filed: 1953-08-18
Abstract: 725,904. Drying parachutes. KIEFER, E. Aug. 18, 1953 [April 28, 1953], No. 22695/53. Class 34 (2). Parachutes 2 are dried by suspending them by their upper ends and passing hot air through the central hole thereof and along the inner and outer surfaces. The parachute is held by a ring 3 on a supporting device 1 carrying a transverse vertical wall 6 and supported on a carriage 7 running on rails 8 extending into a channelshaped drying chamber 9. The carriage moves through the chamber in stages at each of which the device 1 is connected to an air conduit 10, the walls 6 serving to divide the chamber into compartments. The harness and suspension chords 11 of the parachute are drawn up to a point immediately below the entrance of the hot air which passes down over the inside of the parachute and then upwardly over the outer surface. The hot air may be provided from a single source, Fig. 2, to pass through a filter 19, over a condenser 20, through a fan 21 and heater 22 and then through the various stages in succession to an exit 18 or each stage may have its own fan, Fig. 3.
Patent GB-1294488-A (GB)
Title: A method of forming a profiled p-n junction in a body of semiconductor material
Inventor: TSITOVSKY ILYA LEONIDOVICH
IPC: H01L21/00
Filed: 1970-05-11
Abstract: 1294488 Making semi-conductor devices I L TSITOVSKY and G A ZELIKMAN 11 May 1970 22695/70 Heading H1K A profiled PN junction is formed in an N-type silicon wafer by covering one of its surfaces with H 3 BO 3  or B 2 O 3  applied from aqueous solution, by applying bitumen to localized areas of the coated surface (through an apertured metal mask), by spraying the entire surface with an aqueous solution of aluminium nitrate and allowing this to dry, by dissolving away the bitumen and overlying nitrate by boiling the wafer in carbon tetrachloride, and by heating the wafer to diffuse in the boron (overall) and aluminium (localized)-the aluminium diffuses faster than the boron so that those parts of the junction in which both impurities are present are deeper than the remaining parts. (In another method the starting wafer contains a PN junction and the application of H 3 BO 3  or B 2 O 3  is omitted, the process being otherwise identical). In a variant the wafer is first coated overall with aluminium nitrate and parts of the coating removed while the remainder is masked with bitumen and a coating comprising boron then applied. The bitumen and overlying parts of the boron-comprising coating are removed and diffusion then effected.
Patent GB-424005-A (GB)
Title: Improvements in and relating to the speed control of electric motors
IPC: H02K17/40
Filed: 1933-08-14
Abstract: 424,005. Induction motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and ADKINS, B., 13, Fisher Avenue, Paddox, Rugby. Aug. 14, 1933, No. 22699. [Class 35] In a system comprising an induction motor 1, the speed of which is regulated by a slip regulator 10 excited from a frequency changer exciter 4 on the main motor shaft, phase displacement in the winding of the slip regulator is corrected by moving two sets of brush gear 7 on the exciter. For this purpose the two sets of gear may be interconnected by cams or gear wheels of unequal size. The invention is stated to be applicable to arrangements such as those described in Specification 402,498 in which the motor and exciter are combined in one machine.
Patent GB-1006170-A (GB)
Title: Paper currency counter
IPC: G06M7/06
Filed: 1964-06-02
Abstract: 1,006,170. Counting-apparatus. BRANDT AUTOMATIC CASHIER CO. June 2, 1964 [June 20, 1963], No. 22752/64. Heading G4D. [Also in Division B6] Apparatus for feeding and counting banknotes has means for ejecting overlapping notes. Notes to be counted or batched are held in a feed hopper by a spring-pressed plate 19, Fig. 5, feeding being effected by rollers 28, 29, 49, 69, 78 driven at successively higher speeds to reduce the possibility of jamming. The notes are stretched taut on the feed bed (Fig. 8, not shown) and rock lever arm 57, Fig. 4, to operate a switch 58. If notes overlap the arm 57 also operates a doubles switch 59 to energize solenoid 64 and deflect the overlapping notes into a shoot 71. Correctly fed notes pass spoked wheels 86 to be stacked against spring-pressed plate 88, passage over roller 96 operating second count switch 92. The device may count continuously using switch 92 to control a multi-denomination uniselector counter (Fig. 11, not shown) with a visible display 103. Alternatively a switch 104 can be set to count out appropriate batches, shown at 105, control being then transferred to switch 58, which is shunted whenever doubles switch 59 operates. At the end of a batch, solenoid 39 energizes to move plate 18 to the left, Fig. 7, so freeing the notes from feed rollers 28, 29. At the same time plate 33 is lifted to prevent passage of a note from the feed hopper.
Patent GB-1540640-A (GB)
Title: Acid esters of propylene oxide poly-adducts their manufacture and use
IPC: C08G65/00
Filed: 1976-06-02
Abstract: The man-made fibres are dyed or optically brightened with water-insoluble or sparingly water-soluble dyes or optical brighteners, in particular by the exhaust method and at a temperature from 110 to 140 DEG C. The dyeing is carried out in the presence of acid esters of propylene oxide polyadducts, which advantageously have an average molecular weight from 1000 to 6000 and preferably 3000 to 4000. The new assistants are prepared by addition of     (a) propylene oxide to (b) a polyfunctional amine having 2 to 9 carbon atoms and at lest one secondary, reactive amino group or at least one hydroxyl group, and esterification of the products with (c) an at least dibasic oxo-acid or a functional derivative thereof and optionally by converting the resulting acid ester into a salt. The assistants prevent dye agglomerations and precipitations.
Patent GB-1075844-A (GB)
Title: Method and apparatus for blow-moulding of hollow plastic articles
Inventor: SCHWEIGER JOSEF
IPC: B29C49/04
Filed: 1965-05-28
Abstract: 1,075,844. Extrusion/blow-moulding. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 28, 1965, No. 22789/65. Heading B5A. In an extrusion/blow-moulding process the tubular extrudate from the extruder nozzle is pinched and cut by spring-loaded sliding cutters carried by the mould halves and is momentarily supported within the mould cavity by a member connected to the blowing mandrel which is then operated to expand the tube. The support member may be loosely mounted on a rod or may comprise an expansible bellows made of silicone rubber. By so supporting the tube a more uniform wall thickness of the finished article is obtained.
Patent GB-728302-A (GB)
Title: Improvements relating to gas fired furnaces
IPC: F23N5/20
Filed: 1952-09-11
Abstract: 728,302. Controlling gas burners. SEVILLE, J. R., and SPOONER FOOD MACHINERY ENGINEERING CO., Ltd. Aug. 6, 1953 [Sept. 11, 1952], No. 22808/52. Class 75 (1). Control means for a burner adapted to be supplied with gas at either a high or low rate comprises a first relay 11 which, when energized, energizes both an igniter 12 and a second relay 13 which opens an electrically operated valve 14 supplying gas at a low rate and closes a contact 13a in the operating circuit of a second valve 18 supplying gas at a high rate, the opening of the second valve 18 taking place when the first relay 11 is de-energized and means being provided for automatically interrupting all the circuits when necessary, for example in cases of flame or air supply failure or opening of an inspection door. The first relay 11 is energized by a push button 8 and closes contacts 11a, 11b for energizing the second relay 13 and the igniter 12 respectively and opens contacts 11c in the circuit to the high rate gas valve 18. The second relay 13 then closes contacts 13b to open the low rate fuel valve 14. The burner flame closes a switch 15 to energize a third relay 16 which closes contacts 16a in a circuit for energizing the second relay 13 independently of the first relay 11 and the push button 8. When the latter is released therefore the igniter is de-energized but the low rate valve 14 remains open and the contact 11c of the first relay 11 closes to complete the circuit to the high rate valve 18 by way of an oven thermostat 17. The electric supply to the control circuits described is controlled by a switch 7 actuated by an oven inspection door, and by a contact closed by a delay action relay 6 energized by a switch 5 actuated by the air flowing to the burner from a fan controlled by a contactor 2. A two-way switch 1 in one position energizes the fan contactor 2 and in its other position connects the supply to a switch 3 which is actuated by the main gas tap and controls an alarm device 4; if the fan is switched off with the gas tap on the alarm device is energized. Specifications 694,181 and 702,890 are referred to.
Patent GB-1001782-A (GB)
Title: Improvements in loader arrangements for tractors and other vehicles
Inventor: GREEN DENNIS JAMES
IPC: E02F3/627
Filed: 1962-06-14
Abstract: 1,001,782. Tractor load-handling attachments. MIDLAND INDUSTRIES Ltd. June 13, 1963 [June 14, 1962], No. 22847/62. Heading B8H. [Also in Division E1]  To permit of the mounting of a loading assembly on a vehicle there is provided between the assembly and the vehicle a subframe having two side structures, which when the subframe is positioned on the vehicle are disposed on either side thereof to each provide four attachment points. The points are 23 and 39 at which the structure is secured directly or indirectly to the vehicle, point 28 at which an arm of the boom of the assembly is pivotally secured to the subframe, and point 30 to which one end of a boomswinging jack 31 is pivotally secured. Points 23, 30 and 28 are substantially vertically disposed with respect to one another whilst point 39 lies ahead of said points at approximately the horizontal level of the point 30.
Patent GB-682285-A (GB)
Title: Frames consisting of hollow frame sections, particularly window frames
IPC: E06B3/22
Filed: 1950-09-19
Abstract: 682,285. Door and window frames. PRESSWERK AKT.-GES. Sept. 19, 1950 [Sept. 26, 1949], No. 22963/50. Class 20(iii) A door or window frame is made up from two complementary front and rear halfframes which are moulded from a plastic material and which are glued together to form the complete frame, the members of which are hollow. The Figures show a pair of French windows, the window frames being formed of two half-frames 1 and 2 which are moulded from resin impregnated plywood and connected together by glueing along the joints 3 and 4 and by barbed pins 10 which engage in aligned holes in pairs of internal projections 8 and 9. As shown in Fig. 3, each window may be double-glazed with panes 13 and 15, the panes resting on shoulders 12 and 14 and being secured in position by putty. Three draught-sealing surfaces 24, 25 and 26 are obtained between the meeting stiles of the windows, the outer surface 26 being formed by a springy tongue 27 which engages the other stile with resilient contact as the window is closed.
Patent GB-395177-A (GB)
Title: Improvements in scissors
IPC: B26B13/04
Filed: 1932-08-16
Abstract: 395,177. Scissors. DRIEST, C., Marlboro, and MYERS, H. D., 39, Central Avenue, Rochelle Park, both in New Jersey, U.S.A. Aug. 16, 1932, No. 22979. [Class 30.] Sheet-metal detachable blades 11 of barber's or other scissors are attached to short shanks 8, 9 of pivoted handle members by providing the blades with inturned springy tongues 21, drawn longitudinally against the inclined inner walls of slots 8a in the shank-ends by rotatable cams 19 loosely riveted to the shanks and engaging apertures 18 in the blades. The blades also have apertures 17, joined to the apertures 18 by a slot 16, to accommodate the pivot bolt 7, and are located laterally by engagement of a blade-depression 23 with a groove 24 in the shank. The cam is manipulated by an integral finger piece 22. The blades carry stiffening-flanges 12 along their unsharpened edges and the spring tongues 21 serve to draw the blades into firm engagement during cutting. Closure is limited by a stop 10 adjustably screwed to a handle member 5a which also carries a curved finger-portion 5b.
Patent GB-1453425-A (GB)
Title: 2-oxo-tetrahydropyran derivatives and fermentative process for producing the same
IPC: A61K31/35
Filed: 1975-05-23
Abstract: 1453425 2-Oxotetrahydropyran derivatives SANKYO CO Ltd 23 May 1975 [7 June 1974] 23035/75 Heading C2C The novel compounds, designated ML-236, having the Formula I: in which R is H, OH or OCOCH(CH 3 )CH 2 CH 3 , are prepared by cultivating an ML-236 producing micro-organism of the genus Penicillium, e.g. Penicillium citrinum (NRRL-8082), in a culture medium therefor under aerobic conditions and recovering said compound or compounds from the resulting culture. Pharmaceutical compositions having antiatherosclerotic and antihyperlipaemic activity, for oral or parenteral administration, comprise a compound I together with a pharmaceutical carrier or diluent.
Patent GB-775629-A (GB)
Title: Improvements in or relating to reduction gearing and motion converter for windscreenwipers
Inventor: SACCHINI COLUMBUS RAINER
IPC: B60S1/18
Filed: 1955-08-10
Abstract: 775,629. Windscreen cleaners. MARQUE TTE METAL PRODUCTS CO. Aug. 10, 1955, No. 23063/55. Class 138(1) [Also in.Group XXIV] Mechanism for operating electrically driven windscreen wipers of aircraft comprises an epicyclic reduction train G in combination with an eccentric and pitman drive C, the pitman having rack teeth 22 meshing with a pinion 23 on the output shaft 15. The epicyclic train comprises a gyratory gear G2 with external teeth supported and driven by cranks G1 on parallel spindles 44 of gears 40 driven by a central gear 41. The gear 41 is mounted upon a shaft 14 together with a worm gear 10 which receives the input drive through a worm (not shown), driven by a flexible shaft 13a. The gyratory gear G2 meshes with an annulus G3 of small tooth difference to give a high reduction ratio. The annulus G3 is formed on a disc 28 which also has an eccentric 33 engaging the strap 21 of the pitman 20. Needle bearings 26, 30 support the disc 28 on the shaft 14 in alignment with the centres of pressure of the epicyclic gear teeth and the eccentric and pitman.
Patent GB-1102497-A (GB)
Title: Filter for liquids
IPC: B01D29/00
Filed: 1965-05-31
Abstract: 1,102,497. Filter. D. D. FAIREY and J. JACKSON. 31 May, 1965 [11 May, 1965], No. 23132/65. Heading B1D. A filter comprises a body formed from two main parts 10, and 11, 12, 16 detachably secured around their peripheries to form a substantially cylindrical cavity, inlet connection 36, outlet connection 22, a plastic filter paper support member 23 consisting of an imperforate disc with radial grooves 25, 25a on its lower face to permit liquid filtered by filter paper 26 to flow to its circumference and slots 27 in its circumference to allow filtered liquid to flow to the upper face of the disc and thence to the outlet connection 22, and a rubber O-ring 33 to form a liquid tight seal between the said main parts and to clamp the filter paper 26 around its circumference. The filter also comprises plastic foam disc 35. The grooves 25, 25a which are connected by circumferential grooves 24 become shallower towards the centre, the bottoms of grooves 25a reaching the surface of the member 23 intermediate the centre and circumference of the member 23. Grooves 25, 25a form slots at the periphery of member 23. Fluid flow is via inlet 36, plastic foam disc 35, grooves 24, 25 and 25a, slots 27, peripheral chamfer 28, radial grooves (31) on the upper surface of member 23 and outlet connection 22. When the parts of the filter have been assembled, screw member 16 is rotated to effect downward pressure on member 12, thus causing sealing by O-rings 33, 37 and clamping of filter paper by O-ring 33.
Patent GB-578220-A (GB)
Title: Grinding mill
IPC: B02C18/14
Filed: 1944-11-23
Abstract: 578,220. Treating grain. DEHN, F. B. (Chain Belt Co.). Nov. 23, 1944, No. 23339. [Class 58] [Also in Group II] Grain &c. is ground by spreading it over a smooth surface broken by small, uniform, continuous perforations and subjecting it to a shearing action effected by cutters moved over the surface, the ground material passing through the perforations. A rotor 10 comprises a number of discs 11 fitted with cutters 15 and arranged in staggered formation. The rotor is mounted in a housing 19 formed with a feed inlet 26 in which the material is stacked, and which extends over one quadrant of the rotor, the other upper quadrant being closed by a serrated plate 20. A grate frame 23 is formed with a saddle 24 supporting a grate 25 and shear plate 29 nesting therein. The grate frame is adjustable by bolts 30 and set screws 32. Specification 498,641, [Group II], is referred to.
Patent GB-464758-A (GB)
Title: Improved method of and apparatus for drying, primarily intended for artificially drying green fodder crops, grain and other loose materials of a vegetable nature
IPC: F26B17/08
Filed: 1935-08-20
Abstract: 464,758. Drying systems. ROWELL, R. H., SANDERSON, T., and SANDERSON, D. H. Aug. 20, 1935, Nos. 23382 and 32928. [Class 34,(ii)] A method of drying consists in supporting the charge to be dried on a surface permeable to gaseous media and subjecting it simultaneously to an emission of radiant heat from extended surfaces forming radiant panels in close proximity to but not in contact with the charge and to a current of dry gaseous media for removing moisture, the panels being directly heated from within by hot gaseous media derived from the same source as the moisture-removing current. In the construction shown, which is intended especially for drying freshly-cut green fodder, the material to be dried enters the drying chamber a through a hopper provided with a rotary valve k<1>, and falls on the uppermost of a series of perforated endless-band conveyers m. The conveyers are adapted to be driven with adjacent conveyers moving in opposite directions, and the material is conveyed in succession on the upper surface of each conveyer, being finally discharged through an outlet provided with a rotary valve n<1>. The drying chamber is supplied with hot drying gas from a furnace f through passages h<1>, h. In addition hot gas is supplied through passages to superposed ducts c provided along the sides of the chamber. The ducts are connected by spaced transverse ducts g which are perforated. The ducts c, g are of dull black sheet-metal to assist heat radiation. The temperature of the gas admitted to the chamber is controlled by slides r<1>, s<1> controlling admission of atmospheric air. The supply of gas admitted to the ducts c is controlled by flaps e. The slides r<1>, s<1> and the flaps e are preferably operated under thermostatic control. Moisture-laden gas is removed by means of a fan t. In a modified construction articles carried on endless perforated belts pass through longitudinal channels positioned between longitudinal heat-radiating ducts. In a further modification, the charge to be 'dried is spread on one or more trays of expanded metal which are slidden into the drying chamber and subsequently withdrawn when the charge is dry. In a still further modification, the charge is supported on superposed surfaces of perforated material over which it is traversed by linked rakes or scrapers.
Patent GB-1218330-A (GB)
Title: Improvements in or relating to solid-state oscillation devices
IPC: H01L23/488
Filed: 1969-05-07
Abstract: 1,218,330. Semi-conductor devices. NIPPON ELECTRIC CO. Ltd. 7 May, 1969 [10 May, 1968], No. 23385/69. Heading H1K. A solid state oscillation device 1 such as a Gunn effect or IMPATT element is provided with a pair of electrodes at least one of which, 3, is thick at the centre for adequate heat conduction and tapers towards its periphery to provide resilience. The other electrode 2 may be similar to the electrode 3 or may be cylindrical or cup-shaped. A ceramic member 4 insulates the two electrodes 2, 3 from each other and completes a housing. In a modification an output loop passes into the housing through an insulating insert in a metal side wall.
Patent GB-892765-A (GB)
Title: Improvements in or relating to the manufacture of rivets
IPC: B21K1/58
Filed: 1957-07-24
Abstract: 892,765. Making tubular rivets. TUCKER EYELET CO. Ltd., GEORGE, and HENSHAW, J. N. July 22, 1958 [July 24, 1957], No. 23387/57. Class 83 (2). [Also in Group XXV] A tubular rivet is made by forming a tubular blank B with an integral head flange F from sheet metal, assembling a metal collar C on the blank adjacent the flange and pressing the assembly between dies 10, 12 to produce a desired shape of head flange H. The rivet may be flat-topped with 100 degrees countersunk head flange and the blank and collar may be made of a copper-nickel alloy and electro-plated with zinc or cadmium before assembly.